Lowest I've ever seen was a hunter named Nimrod (you know, the Biblical hunter) in TBC. We were doing Heroic Sethekk as a guild, needed one dps. Picked up this guy. He never topped 300 dps. Only meleed, never had a pet. Asked him some questions and he ran out of ammunition and his pet morale was too low to use his pet because he never fed it. He was decked out in epics too, all welfare though.

I don't PvE much but probably me. Back in the dragon soul LFR days I would afk / auto attack in raid finder because I wanted vial of shadows for my rogue. I hate PvE so much, couldn't contribute more than that.

Eh don't feel too bad, my druid as balance(decided to go balance for the first time after hitting 90) and was lucky to break 10k, I'm doing betterish now though, think I broke 30k once or twice with mostly crafted PvP gear.